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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/test/map/at_key.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/map/at_key.cpp b/src/boost/libs/hana/test/map/at_key.cpp new file mode 100644 index 000000000..c948216cb --- /dev/null +++ b/src/boost/libs/hana/test/map/at_key.cpp @@ -0,0 +1,60 @@ +// Copyright Louis Dionne 2013-2017 +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) + +#include <boost/hana/assert.hpp> +#include <boost/hana/at_key.hpp> +#include <boost/hana/equal.hpp> +#include <boost/hana/map.hpp> + +#include <laws/base.hpp> +#include <support/minimal_product.hpp> + +#include <utility> +namespace hana = boost::hana; + + +template <int i> +auto key() { return hana::test::ct_eq<i>{}; } + +template <int i> +auto val() { return hana::test::ct_eq<-i>{}; } + +template <int i, int j> +auto p() { return ::minimal_product(key<i>(), val<j>()); } + +int main() { + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::at_key(hana::make_map(p<0, 0>()), key<0>()), + val<0>() + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::at_key(hana::make_map(p<0, 0>(), p<1,1>()), key<0>()), + val<0>() + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::at_key(hana::make_map(p<0, 0>(), p<1,1>()), key<1>()), + val<1>() + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::at_key(hana::make_map(p<0, 0>(), p<1,1>(), p<2,2>()), key<0>()), + val<0>() + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::at_key(hana::make_map(p<0, 0>(), p<1,1>(), p<2,2>()), key<1>()), + val<1>() + )); + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::at_key(hana::make_map(p<0, 0>(), p<1,1>(), p<2,2>()), key<2>()), + val<2>() + )); + + // check operators + auto m = hana::make_map(p<2, 2>(), p<1, 1>()); + auto const const_m = hana::make_map(p<2, 2>(), p<1, 1>()); + BOOST_HANA_CONSTANT_CHECK(hana::equal(m[key<1>()], val<1>())); + BOOST_HANA_CONSTANT_CHECK(hana::equal(const_m[key<1>()], val<1>())); + BOOST_HANA_CONSTANT_CHECK(hana::equal(std::move(m)[key<1>()], val<1>())); +} |